.banner .center-wrap .btns .btn {
  position: absolute;
  width: 32px;
  height: 44px;
  background-image: url(images/icons.png);
  top: 50%;
  margin-top: -22px;
}
.banner .center-wrap .btns .btn.leftbtn {
  left: -40px;
  background-position: -145px -61px;
}
.banner .center-wrap .btns .btn.leftbtn:hover {
  background-position: -191px -61px;
}
.banner .center-wrap .btns .btn.rightbtn {
  right: -40px;
  background-position: -144px -10px;
}
.banner .center-wrap .btns .btn.rightbtn:hover {
  background-position: -190px -10px;
}

